Is There a Five Vowel System in Welsh?

Welsh has a five vowel system, but it's unlike any five vowel system I've ever seen. It's like he took one form of the square systems and then threw in a high central vowel,. Right, so we have E, E, U, A, A. He also allows sonarants to be a syllabic nucleus. And can also take tone, although they are limited in the sort of syllables they can be in. But anyway, that's the hardest thing in this language is to get his vowels right. The word for I is daw; what you end up with is this tall. Daw. Anyway, I am not going to try to say